CONFigure:{FREQuency|PERiod} [{<
range
>|MIN|MAX|DEF} [, {<
resolution
>|MIN|MAX|DEF}]]
Sets all measurement and trigger parameters to their
for frequency or period meas-
urements. Also specifies the
frequency
or
period
range and resolution.
Parameter
Typical Return
<
range
>: 3 Hz to 300 kHz. Default: 20 Hz. (FREQuency)
<
range
>: 3.33 µs to 333.33 ms. Default: 50 ms
(PERiod).
(none)
<
resolution
>: See table below.
Specify <
resolution
> in the measurement's units (V, A, Hz, Ω, and
so on).
Configure frequency measurements using the default aperture and the 200 Hz (fast) AC filter. Then make
and read one measurement:
CONF:FREQ
FREQ:RANG:LOW 200
READ?
Typical Response: +1.3203
l
The 1 ms aperture applies only to the 34465A and 34470A.
l
The frequency or period <
range
> parameter is required only to specify the measurement resolution
parameter. It is not necessary to send a new command for each new frequency or period to be meas-
ured. The <
range
> and <
resolution
> parameters affect the aperture (gate time) as follows:
Resolution (34460A/61A)
Resolution (34465A/70A)
Aperture
Not Applicable
100 ppm × <
range
> (MAXimum) 1 ms
100 ppm × <
range
> (MAXimum) 10 ppm × <
range
> (DEFault)
10 ms
10 ppm × <
range
> (DEFault)
1 ppm × <
range
>
100 ms
1 ppm × <
range
> (MINimum)
0.1 ppm × <
range
> (MINimum)
1 s
l
The input signal for frequency or period measurements has an
AC voltage
component. Use
{FREQuency|PERiod}:VOLTage:RANGe:AUTO
to disable or enable voltage autoranging or use
to select voltage autoranging by default. Use
to select a fixed voltage range for frequency and period measurements.
l
If the input voltage is too large for the selected voltage range (manual ranging), the instrument dis-
plays the word Overload on the front panel and returns "9.9E37" from the remote interface. Autor-
anging can be enabled for the input voltage.
l
Use
or
to start the measurement.
See Also
Keysight True
volt
Series Operating and Service Guide
249
SCPI Programming Reference
